Answer:
Russell found that there are just twelve
fivefigure numbers
that have
the peculiarity that the first two figures multiplied by the last
three—all the figures being different, and there being no
0—will
produce a number with exactly the same five figures, in a different
order.
But only one of these twelve begins with a
1—namely,
14926.
Now,
if we multiply 14 by 926, the result is 12964, which contains the same
five figures.
The number of the motorcar was therefore 14926.
Here are the other eleven
numbers:—24651, 42678,
51246, 57834, 75231,
78624, 87435, 72936, 65281, 65983, and 86251.
